This week, we saw the following updates to U.S. transmission grid interconnection projects. For access to our live dataset, contact our sales team here.
SANBORN HYBRID 3 — 1400MW battery + solar 🔋☀️ project in Kern, CA (CAISO). Proposed completion changed from March 14, 2025 to June 30, 2026
P2942 Genesee Data Center 1 MPC Load — 1000MW project in Parkland County, AB (AESO). Proposed completion changed from June 30, 2026 to December 31, 2026
Excelsior Energy Center — 280MW solar ☀️ project in Genesee County, NY (NYISO). Proposed completion changed from January 31, 2025 to October 31, 2026
Mayapple Solar, Olive-Reynolds #2 345 kV — 260MW solar ☀️ project in Pulaski County, IN (PJM). Proposed completion changed from June 29, 2023 to December 30, 2027
P2774 CastorNorth Solar Battery, P2774 CastorNorth Solar — 250MW battery + solar 🔋☀️ project in Special Area No 2, AB (AESO). Proposed completion changed from November 30, 2025 to November 30, 2027
P2418 Greencells Estuary Solar — 201MW solar ☀️ project in Special Area No 2, AB (AESO). Proposed completion changed from June 29, 2025 to January 30, 2027
P2778 Rich Valley Solar Battery, P2778 Rich Valley Solar — 200MW battery + solar 🔋☀️ project in Parkland County, AB (AESO). Proposed completion changed from November 30, 2025 to November 30, 2027
P2781 Lamoureux Solar Battery, P2781 Lamoureux Solar — 200MW battery + solar 🔋☀️ project in Strathcona County, AB (AESO). Proposed completion changed from November 30, 2025 to November 30, 2027
P2091 Arenosum Solar — 151MW solar ☀️ project in Special Area No 2, AB (AESO). Proposed completion changed from May 25, 2026 to May 25, 2027
P2520 Laramide MPC Battery — 150MW battery 🔋 project in Foothills County, AB (AESO). Proposed completion changed from November 30, 2025 to May 31, 2026
Woodridge Solar — 138MW solar ☀️ project in Albemarle County, VA (PJM). Proposed completion changed from September 30, 2026 to June 29, 2027
P2776 Legal Solar Battery, P2776 Legal Solar — 125MW battery + solar 🔋☀️ project in Athabasca County, AB (AESO). Proposed completion changed from November 30, 2025 to August 31, 2027
Aspen Road Solar — 100MW solar ☀️ project in Franklin County, PA (PJM). Proposed completion changed from March 6, 2025 to October 23, 2025
Ramsey East 138kV Substation — 100MW solar ☀️ project in Fayette County, IL (MISO). Proposed completion changed from August 31, 2023 to November 30, 2026
Squab Solar — 90MW solar ☀️ project in Jefferson County, PA (PJM). Proposed completion changed from December 30, 2025 to July 9, 2026
Frasier Solar, Sharp Road 69 kV — 80MW solar ☀️ project in Knox County, OH (PJM). Proposed completion changed from December 30, 2023 to January 30, 2028
Battery Storage — 75MW battery 🔋 project in New London County, CT (ISO-NE). Proposed completion changed from May 31, 2025 to May 31, 2028
Knoxville Solar — 51MW solar ☀️ project in Isle Of Wight County, VA (PJM). Proposed completion changed from June 29, 2025 to November 30, 2027
SOLAR STAR 4 — 24MW battery + solar 🔋☀️ project in Kern, CA (CAISO). Proposed completion changed from November 29, 2024 to July 31, 2025
P2259 FortisAlberta Metiskow 648S DER Solar — 22MW battery + solar 🔋☀️ project in Provost No 52, AB (AESO). Proposed completion changed from December 12, 2024 to November 29, 2026
Knoxville Solar — 20MW solar ☀️ project in Isle Of Wight County, VA (PJM). Proposed completion changed from June 29, 2025 to November 30, 2027
Knoxville Solar — 20MW solar ☀️ project in Isle Of Wight County, VA (PJM). Proposed completion changed from June 29, 2025 to November 30, 2027
Shamrock Energy Center, Reed-Reed Tap #1 69 kV — 20MW solar ☀️ project in Northumberland County, PA (PJM). Proposed completion changed from February 28, 2022 to January 31, 2027
Shamrock Energy Center, Reed-Reed Tap#1 69 kV — 20MW solar ☀️ project in Adams County, PA (PJM). Proposed completion changed from February 28, 2022 to January 31, 2027
P2945 Rocky Mountain House 262S DER Gas — 4MW gas 🔥 project in Clearwater County, AB (AESO). Proposed completion changed from February 28, 2025 to November 24, 2025
P2949 Suncor Base Plant GTG 6 Modification — gas 🔥 project in Regional Municipality Of Wood Buffalo, AB (AESO). Proposed completion changed from January 7, 2026 to June 9, 2025
